Noun


1. agglomerate, volcanic rock

usage: volcanic rock consisting of large fragments fused together

2. pile, heap, mound, agglomerate, cumulation, cumulus, collection, aggregation, accumulation, assemblage

usage: a collection of objects laid on top of each other

Verb


1. agglomerate, bunch, bunch up, bundle, cluster, clump

usage: form into one cluster

Adjective


1. agglomerate, agglomerated, agglomerative, clustered, collective (vs. distributive)

usage: clustered together but not coherent; "an agglomerated flower head"

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See also: agglomerate (Dictionary)